ios - Swift 3: Update table View after deleting the data from Core Data -


i trying remove , update data on table view. when mark profile "not favourite", deletes core database, however, still not removes table view. have 1 view controller ( profile view controller add favorite table) , other 1 table view controller ( favorite view controller). when click on 1st view controller add fav, saves record. when go second view controller see favs, can see list. now, remove 1 profile , mark not fav. able delete core database, but, table not reload. when restart app. see 1 marked not fav, removed still holds place on table view. when click on it, crashed down.

the code have:- 

@ibaction func savefav(_ sender: uibutton) {     let propertytocheck = sender.currenttitle!     var proid = saved_id     let context = (uiapplication.shared.delegate as! appdelegate).persistentcontainer.viewcontext     let task = favprofile(context: context)      switch propertytocheck {     case "add favourite":      // link task & context     task.busname = bussinessname     task.profileid = int32(id!)!     print ("saved id is: - \(task.profileid)")     print ("saved profile name is: - \(task.busname)")     fav_remove_fav_button_label.settitle("remove favourite", for: .normal)      // save data coredata     (uiapplication.shared.delegate as! appdelegate).savecontext()      let _ = navigationcontroller?.popviewcontroller(animated: true)      let alert = uialertcontroller(title: "alert", message: "added favourite list", preferredstyle: uialertcontrollerstyle.alert)     alert.addaction(uialertaction(title: "ok", style: uialertactionstyle.default, handler: nil))     self.present(alert, animated: true, completion: nil)          case "remove favourite":                let fetchrequest = nsfetchrequest<nsfetchrequestresult>(entityname: "favprofile")             let predicate = nspredicate(format: "profileid == %@", id as! cvararg)             fetchrequest.predicate = predicate             let moc = getcontext()             let result = try? moc.fetch(fetchrequest)             let resultdata = result as! [favprofile]               object in resultdata {                 moc.delete(object)             }              {                 try moc.save()                 print("saved!")               //  notificationcenter.default.post(name: nsnotification.name(rawvalue: "load"), object: nil)                 let _ = navigationcontroller?.popviewcontroller(animated: true)             } catch let error nserror  {                 print("could not save \(error), \(error.userinfo)")             }                           let alert = uialertcontroller(title: "alert", message: "removed favourite list", preferredstyle: uialertcontrollerstyle.alert)         alert.addaction(uialertaction(title: "ok", style: uialertactionstyle.default, handler: nil))         self.present(alert, animated: true, completion: nil)       //  self.favtable.tableview.reloaddata()       default: break     } }

please refer screen shots below:

this when save/ mark fav profile

this when save/ mark fav profile

this when mark not fav , restart app

this when mark not fav , restart app

this when use reload table view (fav) profile vc, don't have restart app

this when use reload table view (fav) profile vc, don't have restart app.


Comments

Post a Comment

Popular posts from this blog

php - Vagrant up error - Uncaught Reflection Exception: Class DOMDocument does not exist -

i've set bento/ubuntu-16.04 vagrant box using php 5.6, , getting following error quite few times when try , run shell script: "uncaught reflection exception: class domdocument not exist". i've tried adding following top of script (not together), each no success: "sudo apt-get install php5.6-xml", "sudo apt-get install php5-xml", "sudo apt-get install php-dom" i've tried resetting server "sudo service apache2 restart". does have suggestions?
Read more

vue.js - Create hooks for automated testing -

Image
qa guys complained can't automate frontend testing. because our html looks same outside. lazy hack did this <template> <div :role="$options.name"> ... </div> </template> <script> export default { name: 'vmcomponentname' } </script> which takes name script , applies html. in browser get: <div role="vmcomponentname"> ... </div> line :role="$options.name" goes in every component. is there dry er solutions? please share. additional details i'll explain in details looking for. imagine have vmusercreate form creates user. test case can create user . to automatically test without role, have use following selector: .wrapper > .wrapper > .wrapper > .submit-button the test extremely brittle (will break lot). if use roles can use [role="vmusercreateform"] .submit-button selector. many folds less brittle. so basically, i'm ...
Read more

Add new key value to json node in java -

i have json file : { "id":1, "name":"abc", "addressdetails": { "city":"newyork" } } i wanted add 1 more key-value ("pincode" : "414141") node 'addressdetails'. i tried using : objectmapper mapper = new objectmapper(); jsonnode root = mapper.readtree(new file("d://test.json")); objectnode node = mapper.createobjectnode(); node.with("addressdetails").put("pincode", "414141"); but it's not getting added, there way can ? you can try you should modify file path objectmapper mapper = new objectmapper(); objectnode nodes = mapper.readvalue(new file("d:\\test.txt"), objectnode.class); nodes.with("addressdetails").put("pincode", "414141"); mapper.writer().writevalue(new file("d:\\test.txt"), nodes);
Read more